Move command line arg --batch to -batch.

Things are still bit inconsistent due to the existence of
additional -- switches, but the correct fix is not so easy.



git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34005 a592a061-630c-0410-9148-cb99ea01b6c8

RELEASE-NOTES

@@ -11,7 +11,7 @@ Interface changes
 There have been some changes to the LyX command line. There is a new option 
 "--batch" that causes LyX to run the given commands without opening a GUI 
 window. Thus, something like:
-    lyx --batch -x "buffer-print printer default dvips" myfile.lyx
+    lyx -batch -x "buffer-print printer default dvips" myfile.lyx
 will cause LyX to print myfile.lyx to the default printer, using dvips and 
 the default print settings (which, of course, have to have been configured 
 already). At present, not many commands can be used this way, but there will

lib/scripts/bash_completion

@@ -13,7 +13,7 @@ _lyx()
         if [[ "$cur" == -* ]]; then
                 COMPREPLY=( $( compgen -W '-help -userdir -sysdir \
 				-geometry -dbg -x --execute -e --export \
- 				-i --import -version' -- $cur ) ) 
+ 				-i --import -version -batch' -- $cur ) ) 
         else
                 _filedir '@(lyx)'
         fi

src/LyX.cpp

@@ -987,7 +987,7 @@ int parse_help(string const &, string const &, string &)
 		  "\t-i [--import] fmt file.xxx\n"
 		  "                  where fmt is the import format of choice\n"
 		  "                  and file.xxx is the file to be imported.\n"
-		  "\t--batch         execute commands and exit\n"
+		  "\t-batch          execute commands without launching GUI and exit.\n"
 		  "\t-version        summarize version and build info\n"
 			       "Check the LyX man page for more details.")) << endl;
 	exit(0);
@@ -1110,7 +1110,7 @@ void LyX::easyParse(int & argc, char * argv[])
 	cmdmap["-i"] = parse_import;
 	cmdmap["--import"] = parse_import;
 	cmdmap["-geometry"] = parse_geometry;
-	cmdmap["--batch"] = parse_batch;
+	cmdmap["-batch"] = parse_batch;
 
 	for (int i = 1; i < argc; ++i) {
 		map<string, cmd_helper>::const_iterator it